Convert Kilokelvin per watt to Degree Fahrenheit per watt
Convert Kilokelvin per watt (kK/W) to Degree Fahrenheit per watt (°F/W) instantly and accurately.
Conversion Formula
°F/W = kK/W × 1800
About Kilokelvin per watt
The kilokelvin per watt (kK/W) equals exactly 1000 K/W. Used for high thermal resistances in aerogel films, vacuum insulation panels with small contact area, and micron-scale thin-film insulation layers in microelectronics packaging. Numerically identical to °C/mW; both notations denote the same thermal resistance in different engineering contexts. 1 kK/W = 1000 K/W = 1 °C/mW.
About Degree Fahrenheit per watt
The degree Fahrenheit per watt (°F/W) equals exactly 5/9 K/W ≈ 0.5556 K/W. It appears in US power electronics datasheets and legacy JEDEC thermal specifications where junction-to-case resistance is reported in °F/W rather than °C/W or K/W. A device rated 5 °F/W has R = 5 × 5/9 ≈ 2.78 K/W. 1 °F/W = 5/9 K/W.
Quick Reference Table
| Kilokelvin per watt (kK/W) | Degree Fahrenheit per watt (°F/W) |
|---|---|
| 1 kK/W | 1800 °F/W |
| 2 kK/W | 3600 °F/W |
| 5 kK/W | 9000 °F/W |
| 10 kK/W | 18000 °F/W |
| 25 kK/W | 45000 °F/W |
| 50 kK/W | 90000 °F/W |
| 100 kK/W | 180000 °F/W |